Improvement in elevators



UNITED STATES DEXTER S. BAILEY,

PATENT OFFICE OF DOVER, MAINE.

IMPROVEMENT lN ELEVATORS.

Specification forming part of Letters Patent No. 164,359, dated June 15, 1875 application filed May 4, 1875.

To all whom it may concern:

Be it known that I, DEXTER'S. BAILEY, of Dover, in the county of Piscataquis and State of Maine, have invented certain new and useful Improvements in Elevators for raising heavy bodies, such as rocks, stumps, &c., of which the following is a-specification My invention consists of the combination of a sprocket-Wheel with multiplying-gear, and grooved wheel with spurs for holding a hand chain passing over it, to which the power is applied.

A represents a sprocket-wheel rigidly attached to the cog-wheel B. O and D represent two cog-wheels, rigidly attached, and E represents a cog-wheel attached to the wooden wheel F, which engages the cog-wheel D. The wooden wheel F has a groove for the reception of the chain G, and spurs to hold it. H represents a yoke in which the abovenamed wheels are arranged and suspended. I represents a pawl, which engages the cogs of the wheel-D.

The mode of operating the machine is as follows, to-wit: It is suspended in any convenient frame-work, as, for instance, the common tripod. The power is applied to the hand-chain G, which is engaged by spurs on the wheel F, causing said wheel to revolve when power is applied to the chain G. To the wheel F a small cog-wheel is attached, which engages the cog-wheel D. To the cogwheel D the cog-wheel O is attached, which engages the cog-wheel B. To the cog-wheel Bis attached the sprocket-wheel A, for the chain K to pass over when a load is to be raised.

What I claim as my invention is The combination of the sprocket-wheel A, and multiplying-gear B G D E, with the grooved wheel F, and hand-chain G, all arranged and suspended in a yoke, substantially as set forth and described DEXTER S. BAILEY. Witnesses:

(J. B. KITTREDGE, I. E. BAILEY. 

